Delete Partition
DiskPart
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Syntax: delete partition [noerr] [override]
On a basic disk, deletes the partition with focus. You cannot delete the system partition, boot partition, or any partition that contains the active paging file or crash dump (memory dump).
Caution
Deleting a partition on a dynamic disk can delete all dynamic volumes on the disk, thus destroying any data and leaving the disk in a corrupted state. To delete a dynamic volume, always use the delete volume command instead.
You can delete partitions from dynamic disks, but you must not
create them. For example, it is possible to delete an unrecognized
GUID Partition Table (GPT) partition on a dynamic GPT disk. However,
deleting such a partition does not cause the resulting free space to
become available. This command is intended to enable space
reclamation on a corrupted, offline dynamic disk in an emergency
situation where the clean command cannot be used.
noerr
For scripting only. When an error occurs, specifies that DiskPart
continues to process commands as if the error did not occur. Without
the noerr parameter, an error causes DiskPart to exit with an error
code.
override
Enables DiskPart to delete any partition regardless of type.
Normally, DiskPart enables you to delete only known data partitions.
For example of using the Delete Partition command, click here